Имею в наличие вот такие весы
PS-10USB, под винду была найдено прога на
странице, windows я не пользуюсь, но работоспособность её проверил. Под Debian взял скрипт на Python'е, найденный в сети:
#!/usr/bin/env python
"""
ID 04d9:8010 Holtek Semiconductor, Inc.
"""
import usb.core
import usb.util as util
from array import array
import sys
from optparse import OptionParser, make_option
import pickle
from struct import unpack
dev = None
VID = 0x04d9
PID = 0x8010
# define HID constants
REQ_HID_GET_REPORT = 0x01
REQ_HID_GET_IDLE = 0x02
REQ_HID_GET_PROTOCOL = 0x03
REQ_HID_SET_REPORT = 0x09
REQ_HID_SET_IDLE = 0x0A
REQ_HID_SET_PROTOCOL = 0x0B
HID_REPORT_TYPE_INPUT = 1 << 8
HID_REPORT_TYPE_OUTPUT = 2 << 8
HID_REPORT_TYPE_FEATURE = 3 << 8
def openDev():
global dev
dev = usb.core.find(idVendor=VID, idProduct=PID)
if dev is None:
raise ValueError('Device not found')
if dev.is_kernel_driver_active(0):
dev.detach_kernel_driver(0)
# do reset and set active conf. Must be done before claim.
dev.set_configuration()
util.claim_interface(dev, None)
def setReport(reportId, data):
r = dev.ctrl_transfer(
util.build_request_type(
util.CTRL_OUT, util.CTRL_TYPE_CLASS, util.CTRL_RECIPIENT_INTERFACE), # bmRequestType,
REQ_HID_SET_REPORT,
HID_REPORT_TYPE_OUTPUT | reportId,
0, # feature_interface_num
data, # data
3000 # timeout (1000 was too small for C_FREE)
)
print >> (HID_REPORT_TYPE_OUTPUT)
return r
def read():
openDev()
try:
dev.read(0x81, 64) # flush
except usb.core.USBError:
pass
setReport(9, array('B', (0x10, 0, 0, 0, 0, 0, 0, 0)))
# Every user can have upto 12 variables
# and additional 8*64 for user data
r = []
for i in xrange(120 + 8):
x = dev.read(0x81, 64)
if not x:
print >> sys.stderr, "Read failed"
exit(1)
if x[0] == 0xff and (i < 120):
print >> sys.stderr, "Invalid data", x
exit(1)
r.append(x)
# Each variable can have upto 32 values
frmt = "!" + "H" * 32
s = []
for i in xrange(120):
x = unpack(frmt, r[i])
# Variables 5 .. 10 are not available on my scale
if i > 5 and i < 10:
err = [item for item in x if item != 0]
else:
err = [item for item in x if item == 0xffff]
if len(err):
print >> sys.stderr, "INVALID:", err
exit(1)
s.append(x)
return s
def printUser(s, user):
# Transpose from 12x32 to 32x12 and format
j = 12 * user
for i in xrange(32):
x = s[j + 5][i] # date
if not x:
break
print "{:d}-{:02d}-{:02d}T07:00:00 {:.1f} {:.1f} {:.1f} {:.1f} {:.1f} {:d} {:d}".format(
1920 + (x >> 9), x >> 5 & 0xf, x & 0x1f,
s[j + 0][i] / 10., s[j + 1][i] / 10., s[j + 2][i] / 10., s[j + 3][i] / 10., s[j + 4][i] / 10., s[j + 10][i], s[j + 11][i])
def main():
option_list = [
make_option("-c", "--cached", action="store_true", dest="cached"),
#make_option("-w", "--write",action="store", dest="output_file"),
make_option('-u', '--user', action='store', dest='user'),
]
parser = OptionParser(
option_list=option_list, usage='Usage: %prog [options]')
options, args = parser.parse_args()
if options.cached:
with open("dump.pickle") as f:
s = pickle.load(f)
else:
s = read()
with open("dump.pickle", "w") as f:
pickle.dump(s, f)
user = 0
if options.user:
user = int(options.user) - 1
printUser(s, user)
if __name__ == '__main__':
main()
Но при исполнении получаю следующее:
Traceback (most recent call last):
File "test.py", line 145, in <module>
main()
File "test.py", line 133, in main
s = read()
File "test.py", line 70, in read
setReport(9, array('B', (0x10, 0, 0, 0, 0, 0, 0, 0)))
File "test.py", line 57, in setReport
3000 # timeout (1000 was too small for C_FREE)
File "/usr/local/lib/python2.7/dist-packages/usb/core.py", line 971, in ctrl_transfer
self.__get_timeout(timeout))
File "/usr/local/lib/python2.7/dist-packages/usb/backend/libusb1.py", line 819, in ctrl_transfer
timeout))
File "/usr/local/lib/python2.7/dist-packages/usb/backend/libusb1.py", line 552, in _check
raise USBError(_strerror(ret), ret, _libusb_errno[ret])
usb.core.USBError: [Errno 32] Pipe error
Испробовал все версии pyusb (1.0.0a2, 1.0.0a3, 1.0.0b1, 1.0.0b2) которые есть в pip, ставил последнюю с git'a - эффекта ноль, также пробовал разные backend'ы.
lsusb -v -d 04d9:8010
Bus 001 Device 010: ID 04d9:8010 Holtek Semiconductor, Inc.
Couldn't open device, some information will be missing
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x04d9 Holtek Semiconductor, Inc.
idProduct 0x8010
bcdDevice 1.00
iManufacturer 1
iProduct 2
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 34
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 0 No Subclass
bInterfaceProtocol 0 None
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.10
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 53
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval
dmesg
[ 8202.703242] usb 1-1.2: new low-speed USB device number 10 using ehci-pci
[ 8202.813391] usb 1-1.2: New USB device found, idVendor=04d9, idProduct=8010
[ 8202.813397] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 8202.813400] usb 1-1.2: Product: USB-HID demo code
[ 8202.813403] usb 1-1.2: Manufacturer: Holtek
[ 8202.830331] hid-generic 0003:04D9:8010.0009: hiddev0,hidraw2: USB HID v1.10 Device [Holtek USB-HID demo code] on usb-0000:00:1a.0-1.2/input0
dpkg -l | grep usb
ii libgusb2:amd64 0.1.6-5 amd64 GLib wrapper around libusb1
ii libusb-0.1-4:amd64 2:0.1.12-25 amd64 userspace USB programming library
ii libusb-1.0-0:amd64 2:1.0.19-1 amd64 userspace USB programming library
ii libusb-1.0-0-dev:amd64 2:1.0.19-1 amd64 userspace USB programming library development files
ii libusb-1.0-doc 2:1.0.19-1 all documentation for userspace USB programming
ii libusbmuxd2:amd64 1.0.9-1 amd64 USB multiplexor daemon for iPhone and iPod Touch devices - library
ii libusbredirparser1:amd64 0.7-1 amd64 Parser for the usbredir protocol (runtime)
ii usb-modeswitch 2.2.0+repack0-2 amd64 mode switching tool for controlling "flip flop" USB devices
ii usb-modeswitch-data 20150115-1 all mode switching data for usb-modeswitch
ii usbutils 1:007-2 amd64 Linux USB utilities
ii xserver-xorg-video-sisusb 1:0.9.6-2+b2 amd64 X.Org X server -- SiS USB display driver
pip freeze | grep usb
libusb1==1.3.0
pyusb==1.0.0b2
/etc/hidraw2 и
/etc/usb/hiddev0 всегда пустые, в них ничего не пишется.
Помогите прочитать хоть какие-нибудь данные с данных весов.
usbscale тоже пробовал - долго висит и возвращает
Error in USB transfer 
